chromeos: Move files in //ash/common to //ash

ash/accelerators/exit_warning_handler.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_COMMON_ACCELERATORS_EXIT_WARNING_HANDLER_H_
-#define ASH_COMMON_ACCELERATORS_EXIT_WARNING_HANDLER_H_
+#ifndef ASH_ACCELERATORS_EXIT_WARNING_HANDLER_H_
+#define ASH_ACCELERATORS_EXIT_WARNING_HANDLER_H_
 
 #include <memory>
 
 #include "ash/ash_export.h"
 #include "base/macros.h"
 #include "base/timer/timer.h"
 #include "ui/base/accelerators/accelerator.h"
 
 namespace views {
 class Widget;
@@ skipping 57 matching lines @@
 
   // Flag to suppress starting the timer for testing. For test we call
   // TimerAction() directly to simulate the expiration of the timer.
   bool stub_timer_for_test_;
 
   DISALLOW_COPY_AND_ASSIGN(ExitWarningHandler);
 };
 
 }  // namespace ash
 
-#endif  // ASH_COMMON_ACCELERATORS_EXIT_WARNING_HANDLER_H_
+#endif  // ASH_ACCELERATORS_EXIT_WARNING_HANDLER_H_